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From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (APEXMALHAR-1988) CassandraInputOperator fetches less number of records inconsistenly
Date Tue, 10 May 2016 21:43:12 GMT

    [ https://issues.apache.org/jira/browse/APEXMALHAR-1988?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15279013#comment-15279013
] 

ASF GitHub Bot commented on APEXMALHAR-1988:
--------------------------------------------

Github user DT-Priyanka commented on a diff in the pull request:

    https://github.com/apache/incubator-apex-malhar/pull/186#discussion_r62758000
  
    --- Diff: contrib/src/main/java/com/datatorrent/contrib/cassandra/AbstractCassandraInputOperator.java
---
    @@ -112,8 +115,15 @@ public void emitTuples()
         String query = queryToRetrieveData();
         logger.debug("select statement: {}", query);
     
    +    SimpleStatement stmt = new SimpleStatement(query);
    +    stmt.setFetchSize(fetchSize);
    --- End diff --
    
    The query is fetched each time "queryToRetrieveData()". In current implementation query
doesn't change much. But anyone can implement that function to change query parameters in
each run. In that case we need to create statement using the current query. This is abstract
class so trying to make sure it helps in all known use cases.


> CassandraInputOperator fetches less number of records inconsistenly
> -------------------------------------------------------------------
>
>                 Key: APEXMALHAR-1988
>                 URL: https://issues.apache.org/jira/browse/APEXMALHAR-1988
>             Project: Apache Apex Malhar
>          Issue Type: Bug
>            Reporter: Priyanka Gugale
>            Assignee: Priyanka Gugale
>
> CassandraInputOperator fetches less number of records than available in table. Also number
of records returned in each runs are different.



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